<?php


从 5.5 升级到 5.8
composer update --with-dependencies 或者 composer update --with-all-dependencies

升级说明
https://learnku.com/docs/laravel/6.x/upgrade/5122

Carbon 1.x 不再支持
Laravel 5.5升级到Laravel 5.7版本操作记录
http://www.ithov.net/php/1643.html


composer require --update-with-dependencies laravel/framework:6.9.0 mews/captcha:2.3.0

composer update --with-all-dependencies laravel/framework 6.9.0

composer require --update-with-dependencies mews/captcha 3.1
composer require --update-with-dependencies laravel/framework 6.9.0


composer require --update-with-dependencies laravel/helpers
composer require --update-with-dependencies mews/captcha 2.3.0,laravel/framework 6.9.0 

composer require --update-with-dependencies monolog/monolog